Sodium Sulfate → 6-{[({(3S)-1-[2-(7-fluoro-2-oxo-1(2H)-quinolinyl)ethyl]-3-pyrrolidinyl}methyl)amino]methyl}-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one

HRID 657060ノート

反応式

HRID 657060 の反応式
[NH2:1][CH2:2][C@@H:3]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([F:20])[CH:18]=3)[CH:13]=[CH:12][C:11]2=[O:21])[CH2:4]1.[O:22]=[C:23]1[CH2:28][O:27][C:26]2[CH:29]=[CH:30][C:31]([CH:33]=O)=[N:32][C:25]=2[NH:24]1.[O-]S([O-])(=O)=O.[Na+].[Na+].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>>[F:20][C:17]1[CH:18]=[C:19]2[C:14]([CH:13]=[CH:12][C:11](=[O:21])[N:10]2[CH2:9][CH2:8][N:5]2[CH2:6][CH2:7][C@@H:3]([CH2:2][NH:1][CH2:33][C:31]3[CH:30]=[CH:29][C:26]4[O:27][CH2:28][C:23](=[O:22])[NH:24][C:25]=4[N:32]=3)[CH2:4]2)=[CH:15][CH:16]=1

参加物

5

反応物 4

HCID 24436Sodium SulfateHCID 5049666Sodium triacetoxyborohydrideHCID 218737373-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehydeHCID 688179411-{2-[(3S)-3-(Aminomethyl)-1-pyrrolidinyl]ethyl}-7-fluoro-2(1H)-quinolinone

生成物 1

HCID 579279906-{[({(3S)-1-[2-(7-fluoro-2-oxo-1(2H)-quinolinyl)ethyl]-3-pyrrolidinyl}methyl)amino]methyl}-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one収率 51%

実験手順

To a solution of 1-{2-[(3S)-3-(aminomethyl)-1-pyrrolidinyl]ethyl}-7-fluoro-2(1H)-quinolinone (87 mg, 0.30 mmol) and 3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carboxaldehyde (for a synthesis see WO2003087098, Example 31(e)) (54 mg, 0.302 mmol) was added Na2SO4 (355 mg, 2.50 mmol) and the reaction was stirred at ambient temperature for 18 h. The intermediate imine was treated with sodium triacetoxyborohydride (160 mg, 0.75 mmol) and stirred for an additional 16 h). The solvents were removed under reduced pressure; the residue was partitioned between dichloromethane and aqueous sodium bicarbonate, and the organic layer was dried (Na2SO4). Purification by column chromatography on silica gel, (1% to 20% methanol:dichloromethane gradient) yielded the title compound as an amorphous off-white solid (69 mg, 51%).

後処理

  1. stirringstirred for an additional 16 h)
  2. customThe solvents were removed under reduced pressure
  3. customthe residue was partitioned between dichloromethane and aqueous sodium bicarbonate
  4. dry with materialthe organic layer was dried (Na2SO4)
  5. customPurification by column chromatography on silica gel, (1% to 20% methanol:dichloromethane gradient)

出典と根拠

ORDレコード
ord-e9bf17c4f9e54d65a4b30d8e2704f846
出典データセット
uspto-grants-2011_12
特許番号
US08071592B2

反応ノート

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